20120700680

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{379}}^1\times {\mathrm{3697}}^1$

素因数の和:4446

約数の個数: 64

約数和(自身を含む): 45529776000

約数和(自身を除く): 25409075320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 379, 718, 758, 1436, 1516, 1795, 1895, 2872, 3032, 3590, 3697, 3790, 7180, 7394, 7580, 14360, 14788, 15160, 18485, 29576, 36970, 73940, 136061, 147880, 272122, 544244, 680305, 1088488, 1327223, 1360610, 1401163, 2654446, 2721220, 2802326, 5308892, 5442440, 5604652, 6636115, 7005815, 10617784, 11209304, 13272230, 14011630, 26544460, 28023260, 53088920, 56046520, 503017517, 1006035034, 2012070068, 2515087585, 4024140136, 5030175170, 10060350340, 20120700680]

約数ペア:

[(1, 20120700680), (2, 10060350340), (4, 5030175170), (5, 4024140136), (8, 2515087585), (10, 2012070068), (20, 1006035034), (40, 503017517), (359, 56046520), (379, 53088920), (718, 28023260), (758, 26544460), (1436, 14011630), (1516, 13272230), (1795, 11209304), (1895, 10617784), (2872, 7005815), (3032, 6636115), (3590, 5604652), (3697, 5442440), (3790, 5308892), (7180, 2802326), (7394, 2721220), (7580, 2654446), (14360, 1401163), (14788, 1360610), (15160, 1327223), (18485, 1088488), (29576, 680305), (36970, 544244), (73940, 272122), (136061, 147880)]